18723447

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16127}}^1$

素因数の和:16179

約数の個数: 16

約数和(自身を含む): 28385280

約数和(自身を除く): 9661833

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16127, 48381, 145143, 435429, 693461, 2080383, 6241149, 18723447]

約数ペア:

[(1, 18723447), (3, 6241149), (9, 2080383), (27, 693461), (43, 435429), (129, 145143), (387, 48381), (1161, 16127)]